Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Narrative) (Details)

v3.8.0.1
Stock-Based Compensation (Narrative) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Number of shares reserved for issuance 39,900    
Weighted average period of recognition related to unvested equity awards (in years) 1 year 9 months 18 days    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate 0.00%    
Total unrecognized compensation cost related to unvested Liberty equity awards $ 116    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value 145 $ 44 $ 115
Share-based Compensation Expense 123 97 127
Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Fair Value $ 23 $ 26 $ 16
Common Class A      
Options granted 4,116    
Common Class B      
Options granted 154    
Minimum      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 2 years 2 years 2 years
Maximum      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 6 years 8 months 12 days 6 years 8 months 12 days 6 years 8 months 12 days
QVC Group Common Stock | Common Class A | Restricted Stock      
Nonvested awards, number 5,200    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 24.00    
QVC Group Common Stock | QVC Employees | Common Class A      
Options granted 3,115 2,860 2,002
Weighted average grant-date fair value of options $ 7.86 $ 7.84 $ 11.87
Award vesting period 4 years    
QVC Group Common Stock | zulily Employees | Common Class A      
Options granted 483 433 264
Weighted average grant-date fair value of options $ 7.86 $ 7.57 $ 9.84
Award vesting period 4 years    
QVC Group Common Stock | Liberty Employees | Common Class A      
Options granted 518 421 2,459
Weighted average grant-date fair value of options $ 7.81 $ 8.02 $ 11.63
QVC Group Common Stock | QVC CEO | Common Class A      
Options granted     1,680
Weighted average grant-date fair value of options     $ 10.40
QVC Group Common Stock | QVC CEO | Common Class A | Awards subject to Fifty Percent Vesting      
Award Vesting Period Percentage 50.00%    
QVC Group Common Stock | Chief Executive Officer | Common Class B      
Options granted 154 730 132
Weighted average grant-date fair value of options $ 7.92 $ 7.47 $ 10.10
QVC Group Common Stock | Liberty directors | Common Class A      
Award vesting period 1 year    
QVC Group Common Stock | Minimum | Liberty Employees | Common Class A      
Award vesting period 3 years    
QVC Group Common Stock | Maximum | Liberty Employees | Common Class A      
Award vesting period 5 years    
Liberty Ventures common stock | Common Class A      
Options granted 188    
Liberty Ventures common stock | Common Class A | Restricted Stock      
Nonvested awards, number 252    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 50.46    
Liberty Ventures common stock | Common Class B      
Options granted 269    
Liberty Ventures common stock | Liberty Employees | Common Class A      
Options granted 188 114 683
Weighted average grant-date fair value of options $ 16.52 $ 12.25 $ 18.10
Liberty Ventures common stock | Chief Executive Officer | Common Class B      
Options granted 269 209 135
Weighted average grant-date fair value of options $ 15.41 $ 12.48 $ 16.94
Liberty Ventures common stock | Liberty directors | Common Class A      
Award vesting period 1 year    
Liberty Ventures common stock | Minimum | Liberty Employees | Common Class A      
Award vesting period 3 years    
Liberty Ventures common stock | Maximum | Liberty Employees | Common Class A      
Award vesting period 5 years    
CommerceHub      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Share-based Liabilities Paid   $ 90  
Option exchange      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value $ 104    
Unamortized value of unvested eligible options $ 14    
Option exchange | QVC Group Common Stock | Common Class A      
Options granted 5,900    
Weighted average grant-date fair value of options $ 3.49    
Option exchange | Liberty Ventures common stock | Common Class A      
Options granted 946    
Weighted average grant-date fair value of options $ 8.53    
Option exchange | Liberty Ventures common stock | Common Class B      
Options granted 1,100    
Weighted average grant-date fair value of options $ 6.94    
2012 Plan | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period 7 years    
Award vesting period 4 years    
2012 Plan | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period 10 years    
Award vesting period 5 years    
Unvested New Options member      
Share-based Compensation Expense $ 6    
New vested option member      
Share-based Compensation Expense $ 30    
Chief Executive Officer | QVC Group Common Stock | Common Class B | Restricted Stock      
Options granted 115 53 182
Weighted average grant-date fair value of options $ 19.90 $ 25.11 $ 29.41
Award vesting period 1 year    
Chief Executive Officer | Liberty Ventures common stock | Common Class B | Restricted Stock      
Options granted   16 13
Weighted average grant-date fair value of options   $ 38.79 $ 42.33
Award vesting period 1 year